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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 171 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.Write 1/4 as a percent.
  2. 2.Round 52.86 to one decimal place. =
  3. 3.A hall floor is 315 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  4. 4.Which is closest to 201 × 39? (Round each number first.) (a) 16000 (b) 80000 (c) 800 (d) 8000
  5. 5.How many factors does 67 have?
  6. 6.Round 58.66 to one decimal place. =
  7. 7.8/9 × 8/11 =
  8. 8.12 ÷ 2 × 9 + 14 =
  9. 9.3 painters can paint a school in 7 days. How many days would 7 painters take, working at the same speed?
  10. 10.What is the smallest number you must take away from 526 so that it divides exactly by 12?
  11. 11.1/3 − 2/12 =
  12. 12.If 3 kg of rice costs ₹138, how many kg can you buy for ₹92?
  13. 13.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  14. 14.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 3 or 6.
  15. 15.Isha takes 54 seconds and Pooja takes 72 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  16. 16.Two tanks hold 250 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  17. 17.How many factors does 45 have?
  18. 18.Round 9480 to the nearest hundred.
  19. 19.Which is closest to 1601 ÷ 19? (a) 160 (b) 80 (c) 40 (d) 800
  20. 20.If 2 kites cost ₹76, how much do 12 kites cost (in ₹)?
  21. 21.Two tanks hold 240 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  22. 22.How many factors does 72 have?
  23. 23.Diya takes 80 seconds and Manav takes 30 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  24. 24.Find the LCM of 4, 11 and 5.
  25. 25.Find the HCF of 54 and 63.
  26. 26.21 + 11 × 8 − 17 =
  27. 27.45 − 12 ÷ 3 × 5 =
  28. 28.Divide ₹72 between Ananya and Meera in the ratio 4 : 5. How much does Meera get (in ₹)?
  29. 29.How many factors does 22 have?
  30. 30.What is 1/2 of 10 litres?
  31. 31.Find the HCF of 36 and 27.
  32. 32.Which is closest to 205 + 904 + 700? (a) 2000 (b) 1700 (c) 1900 (d) 1800
  33. 33.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 6, 8 or 10.
  34. 34.Round 34560 to the nearest hundred.
  35. 35.Which is closest to 303 + 300 + 501? (a) 1000 (b) 1200 (c) 1100 (d) 1300
  36. 36.Which of these numbers divides exactly by 9? (a) 3640 (b) 8855 (c) 8460 (d) 2281
  37. 37.5 : 8 = 10 : ?
  38. 38.8/10 + 2/6 =
  39. 39.Find the HCF of 63 and 54.
  40. 40.A hall floor is 270 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 25
  2. 52.9
  3. 35
  4. 8000
  5. 2
  6. 58.7
  7. 64/99
  8. 68
  9. 3
  10. 10
  11. 1/6
  12. 2
  13. 32
  14. 32
  15. 216
  16. 50
  17. 6
  18. 9500
  19. 80
  20. 456
  21. 30
  22. 12
  23. 240
  24. 220
  25. 9
  26. 92
  27. 25
  28. 40
  29. 4
  30. 5
  31. 9
  32. 1800
  33. 122
  34. 34600
  35. 1100
  36. 8460
  37. 16
  38. 17/15
  39. 9
  40. 30

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